2027 GMC Yukon and Yukon XL Spark Plugs
2027 GMC Yukon and Yukon XL spark plugs: 0.95–1.10 mm gap (5.3L V8 (L84) and 6.2L V8 (L87) gasoline engines). From the owner's manual, PDF page 427.
0.95–1.10mm
Gap · 5.3L V8 (L84) and 6.2L V8 (L87) gasoline engines
2027 GMC Yukon and Yukon XL Owner's Manual, PDF page 427
0.95–1.10 mm (0.037–0.043 in)Open the manual at this page ↗Added Oct 20, 2026 · Updated
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Spark plugs (gap) · 5.3L V8 (L84) and 6.2L V8 (L87) gasoline engines · PDF page 427
0.95–1.10 mm (0.037–0.043 in)
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As printed in the manual
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 5.3L V8 (L84) and 6.2L V8 (L87) gasoline engines | 0.95–1.10 mmgap | “0.95–1.10 mm (0.037–0.043 in)” | PDF page 427 ↗ |
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